Door-stop.



EEST AVAELABLE CQP UNITED STATES PATENT OFFICE.

SAMUEL MARSHALL GREENIDGE AND ALCINOUS YOUNG WRIGHT, OF DOUGLAS,ARIZONA.

noon-STOP.

Specification of Letters Patent.

Patented Apr. 22, 191 3.

Applicntionled July 18, 1912. Seria] No. 710,237.

To all whom it may concern.'

Be it known that we, SAHUEL MAnsHALL Gin-:axiom: and ALciNons YOUNGlVnioH'r, citizens of the United States, residing at Douglas, in thecounty of Cochise and State of Arizona, have invented certain new anduseful Im rovements' in Door-Stops, of which the ollowinqr is aspecification.

Our invention reiates to an improvement in door-stops, and the object ispiovide a sim )le device operable by turning the doorkno to hold thedoor open at any angle.

'With this object in view our invention consists in a lever attachetothe knobhandle or shank in connection with means controlled b saidlevei' for checking and holding the oor at the desired position theinstant the knob is released.

Our invention further consists in means controlled by the door-knob forholding the door at any angle desired in connection with means forautomatically locking said firstmentioned means when not in use and forautomatically releasing it when it is to be again thrown into operativeposition.

Our invention still further consists in certain novel features ofconstruction and combinations of parts which will be hereinafter fullydescribed and pointed out in the claims.

The accompanying drawing is a View in side elevation with the casingremoved to show the interior construction and the vai'ious operatingparts of our improved stop.

A represents the door-knob handle or shank; and B is a lever mountedthereon.

I) is a flexible connection such as a chain extending from the outer orfree end of the lever B to the )langer E, which latter is slidablymounted in a suitable easing C actuated by s )rin f F. This plunger Ecarries a rubber-plug at the bottom in position to engage the floor, theeasing C being held on the door near the lower end by screws or othermeans K, K.

Within the casing, a catch H is pivoted at R. About midway between theends, this catch has a shoulder N in position to enga e and take under alu M projecting lateralgiy from the plunger w en the catch I-I is heldin the osition shown in the drawings by the s ring I, the purpose ofthis shoulder N being to hold tie rubber plug G of the )lunger outI ofcontact with the floor when it is the desire to make the door-stopinoperative. The upper end L of the catch rojeets inwardly in the pathof the lug ii so that by turninf1r the door-knob to raise the lever I3,lug hf is caused to strike the end L of the catch, forcing the catchaside, and the free end of the spring I drops into the recess or socketJ which it fits, where it remains withholdinfT the shoulder N from thepath of the lug Si, ermitting the rubber plug to engage the oor when theknob is released, due to the action of the spring l?. After passing theshoulder N, the lug M finds the lower end O of the catch I-I in itspath, and striking it the catch is swung to the position shown in thedrawing with the shoulder N ready to rengage the lug M when the lattershall have been raised to a point above it.

It is evident that other catching means might be employed as well asmodifications made in the mechanism of the plunger and accessories, andhence we do not wish to limit ourselves to the exact construction hereinset forth, but.:

Having fully described our invention, what we claim as new and desire tosecure by Letters Iatent, is

1. The combination with a movable phinger having a lug thereon, andmeans for actuating said plunger, of a pivoted catch having threeportions, one of which is always in the path of the lug on the plunger,and at least two of which may be in the path of the ilunger, whereby thecatch automatically iolds or releases the plunger according to themanipulation of the meansl which actuates the plunger.

2. The combination with a movable plunger, means connected with adoor-handle,

and a connection between said means and the plunger for controlling thelatter, of a movable catch having an intermediate shoulder and its endsin )osition in the path of a portion of the plunger, and a springconnected with the catch for swinging the catch or holding it in one ofits positions.

3. The combination with a movable pliiugrr .having a lug thereon, andmeans for moving the planner in opposite directions, of a pivoted catcicni'i ,'ing a shoulder and having the shoulder and both ends in positionto be engaged by the lug on the plunger, In testimony whereof we afiixour signa- :ind n spring connected with the catch for tures, in thepresence of two Witnesses. Swingin" it into its normnl osition, sne. Yspring cinstrncted and ndnptel to hold the IDGE' catch ont of its normalposition until the L lower end of the catch is struck by the luglYVitneSSes:

when the catch is automatically caused to re- D. O. RICHARDSON, sinne isnormal position. FRANK lV. DOAN.

Copie: of this patent may be obtained for ve cents each, by addressingthe Commissioner ot Entente,

.Washingtom D. C.

